python threading 模块控制多线程

Python中的threading.Event()操控多线程的过程有： 
- 定义事件：

man_talk_event = threading.Event()

 
- 创建线程，传入对应事件：

t1 = threading.Thread(target=man, args=(man_talk_event,), name='man')

 
- 查看对应事件的标志：

man_talk_event.is_set()

返回Ture或False 
- 阻塞对应事件线程：

man_talk_event.wait()

 如果事件标志为True则不阻塞 
- 继续对应事件线程：

man_talk_event.set()

 设置事件标志为True 
- 结束对应事件线程：

man_talk_event.clear()

 设置事件标志为False 
- 注意创建线程的时候，如果之前设置成t1.setDaemon(True)，则不会阻塞主线程import time
import threading

event = threading.Event()

def lighter():
count = 0
event.set() #先设置绿灯
while True:
if count >5 and count < 10: #改成红灯
event.clear() #把标志位清了
print("\033[41;1mred light is on....\033[0m")
elif count >10:
event.set() #变绿灯
count = 0
else:
print("\033[42;1mgreen light is on....\033[0m")
time.sleep(1)
count +=1

def car(name):
while True:
if event.is_set(): #代表绿灯
print("[%s] running..."% name )
time.sleep(1)
else:
print("[%s] sees red light , waiting...." %name)
event.wait()
print("\033[34;1m[%s] green light is on, start going...\033[0m" %name)

light = threading.Thread(target=lighter,)
light.start()

car1 = threading.Thread(target=car,args=("Tesla",))
car1.start()